Why on earth would this manufacturer put a carcinogen in their vitamin B? and what is the source of the fructose? GMO corn?
From the Wise Geek.....
Safety Concerns
When combined with ascorbic acid — also known as vitamin C or citric acid — the preservative converts to benzene, a carcinogen reported to cause leukemia, DNA damage, damage to mitochondria in cells, cell death and Attention Deficit Hyperactivity Disorder (ADHD). Additional studies show that sodium benzoate mixed with certain artificial food coloring causes hyperactivity in children. Since many people consume soft drinks on a regular basis and the preservative is usually unnoticed in most diets, benzene levels may be very high for heavy soda drinkers.

So easy to take and tastes good. In the afternoon if I feel tired I will take another dropperful. Dr. Becker says there is no level of toxicity for B12. I like it with Vitol, Q10 each morning. Many nutritionists recommend abstaining one day in seven from supplements. I feel the absence of this on the day I allow my body to rest.